Regular verb: fluctuate - fluctuated - fluctuated
Simple form | V-ing form |
I could fluctuate you could fluctuate he could fluctuate we could fluctuate you could fluctuate they could fluctuate | I could be fluctuating you could be fluctuating he could be fluctuating we could be fluctuating you could be fluctuating they could be fluctuating |
Perfect | V-ing perfect |
I could have fluctuated you could have fluctuated he could have fluctuated we could have fluctuated you could have fluctuated they could have fluctuated | I could have been fluctuating you could have been fluctuating he could have been fluctuating we could have been fluctuating you could have been fluctuating they could have been fluctuating |
Simple form | V-ing form |
I couldn't fluctuate you couldn't fluctuate he couldn't fluctuate we couldn't fluctuate you couldn't fluctuate they couldn't fluctuate | I couldn't be fluctuating you couldn't be fluctuating he couldn't be fluctuating we couldn't be fluctuating you couldn't be fluctuating they couldn't be fluctuating |
Perfect | V-ing perfect |
I couldn't have fluctuated you couldn't have fluctuated he couldn't have fluctuated we couldn't have fluctuated you couldn't have fluctuated they couldn't have fluctuated | I couldn't have been fluctuating you couldn't have been fluctuating he couldn't have been fluctuating we couldn't have been fluctuating you couldn't have been fluctuating they couldn't have been fluctuating |
Simple form | V-ing form |
could I fluctuate? could you fluctuate? could he fluctuate? could we fluctuate? could you fluctuate? could they fluctuate? | could I be fluctuating? could you be fluctuating? could he be fluctuating? could we be fluctuating? could you be fluctuating? could they be fluctuating? |
Perfect | V-ing perfect |
could I have fluctuated? could you have fluctuated? could he have fluctuated? could we have fluctuated? could you have fluctuated? could they have fluctuated? | could I have been fluctuating? could you have been fluctuating? could he have been fluctuating? could we have been fluctuating? could you have been fluctuating? could they have been fluctuating? |
Simple form | V-ing form |
couldn't I fluctuate? couldn't you fluctuate? couldn't he fluctuate? couldn't we fluctuate? couldn't you fluctuate? couldn't they fluctuate? | couldn't I be fluctuating? couldn't you be fluctuating? couldn't he be fluctuating? couldn't we be fluctuating? couldn't you be fluctuating? couldn't they be fluctuating? |
Perfect | V-ing perfect |
couldn't I have fluctuated? couldn't you have fluctuated? couldn't he have fluctuated? couldn't we have fluctuated? couldn't you have fluctuated? couldn't they have fluctuated? | couldn't I have been fluctuating? couldn't you have been fluctuating? couldn't he have been fluctuating? couldn't we have been fluctuating? couldn't you have been fluctuating? couldn't they have been fluctuating? |